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x2=-16 Two solutions were found : x= 0.0000 - 4.0000 i x= 0.0000 + 4.0000 i Rearrange: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of ...

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将 x^{2}-16 改写为 x^{2}-4^{2}。 可使用以下规则对平方差进行因式分解: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right)。

Consider x^{2}-16. Rewrite x^{2}-16 as x^{2}-4^{2}. The difference of squares can be factored using the rule: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).

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Take the specified root of both sides of the equation to eliminate the exponent on the left side. Simplify ±√16 ± 16. Tap for more steps... The complete solution is the result of both the positive and negative portions of the solution. Tap for more steps...

2x2 - 16 = 0 . Note : AB = BA is the commutative property of multiplication. Note : - AB + AB equals zero and is therefore eliminated from the expression. Check : 8 is not a square !! Ruling : Binomial can not be factored as the difference of two perfect squares. 2 • (x2 - 8) = 0 . This equation has no solution.

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Tiger shows you, step by step, how to solve YOUR Quadratic Equations (2x-2)^2=16 by Completing the Square, Quadratic formula or, whenever possible, by Factoring Home Topics